!16 Oithorrliapha brachycera. 



26. T. fuscicornis Zett. 



1842. Zett. Dipt. Scand. I, 291, 23. — 1862. Schin. F. Å. 1, DO 

 {Platy palpus). — 1903. Kat. palåarkt. Dipt. II, 284. — Tachydromia pal- 

 lipes (non Fall.) : 1822. Meig. Syst. Beschr. III, 74, 14. 



Male. Frons and vertex black, shining; epistoma exceedingly 

 narrow, greyish white; palpi whitish yellow, not large, about half as 

 long as the black proboscis. Occiput grey, with yellow bristles above, 

 white hairs below. Antennæ blackish or brown, the third joint short, 

 about half as long as the arista. Thorax black, shining, somewhat 

 greyish pruinose at the margin; the uniserial dorsocentral and biserial 

 acrostichal hairs present in the ordinary way, distinct and somewhat 

 long; there are two somewhat long dorsocentral bristles behind and 

 two notopleural bristles; all the hairs and bristles yellow. Scutellum 

 yellowish pruinose, with two yellow marginal bristles, and on each 

 side a small hair. Pleura somewhat greyish pruinose, sternopleura 

 black, shining. Abdomen black, not much shining, with somewhat 

 longish, yellow hairs. Venter black. The exterior genitalia somewhat 

 large, the row of hairs on the left side dense, and the hairs long and 

 of deep yellow colour. Legs yellow, the last tarsal joint generally 

 more or less brownish. The front femora slightly, the middle femora 

 somewhat thickened ; the middle tibiæ more than two thirds of the 

 femora in length, the apical spine rather large, black at the apex. 

 The legs are yellow haired. Wings yellow. Veins brownish, yellow 

 at the base. Balteres yellowish white. 



Female. Similar to the male; abdomen pointed and a little 

 shorter haired. 



Length 2,3 to about 3 mm. 



T. fuscicornis is not rare in Denmark, but it has hitherto only 

 been taken in the vicinity of Copenhagen; Lersøen, Erraelund, Dyre- 

 haven; my dates are only ^^k — '^^/c It occurs in low herbage in 

 woods on open, somewhat shaded and humid piaces. 



Geographical distribution: — Europe down into Spain; towards 

 the north to northern Sweden, and in Finland. 



27. T. ciliaris Fall. 



1815. Fall. Dipt. Suec. Empid. 33, 1-2. — 1822. Meig. Syst. Beschr. 

 III, 86, 44. — 1842. Zett. Dipt. Scand. I, 289, 21. — 1862. Schin. F. A. 

 I, 90 {Platy palpus). — 1903. Kat. palåarkt. Dipt. 11, 281. 



Male. Frons and vertex greyish; epistoma exceedingly narrow, 

 whitish; palpi somewhat large, whitish. Occiput greyish, with yellow 

 hairs above, white hairs below. Antennæ black or brownish black, 

 distinctly pubescent, the third joint short, about half as long as the 



